require

require - imports are global. This makes it hard to see in a file where some objects might come from as they might have been required by some other file.

Similarly requiring a bunch of files in a directory is easy to do, but might make it a bit harder for someone without an IDE to find the source of each object.


require "./directory/file"  # relative path to the cr file
require "./directory/*"     # all the cr files in the directory
require "./directory/**"    # all the cr files in the directory - recursively
require "some_name"         # Find it somewhere (standard library, src directory)

You can put the require statements anywhere but you might want to be consistent in your project.
Make sure you don't have circular requires.